EP0122230A1 - Dispositif pour régler la tension dans un élement allongé - Google Patents

Dispositif pour régler la tension dans un élement allongé Download PDF

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Publication number
EP0122230A1
EP0122230A1 EP84810163A EP84810163A EP0122230A1 EP 0122230 A1 EP0122230 A1 EP 0122230A1 EP 84810163 A EP84810163 A EP 84810163A EP 84810163 A EP84810163 A EP 84810163A EP 0122230 A1 EP0122230 A1 EP 0122230A1
Authority
EP
European Patent Office
Prior art keywords
tensioning
fluid
force
arrangement according
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84810163A
Other languages
German (de)
English (en)
Inventor
Eduard Zaugg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of EP0122230A1 publication Critical patent/EP0122230A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B65H2403/725—Brakes
    • B65H2403/7253—Brakes pneumatically controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/112—Length of a loop, e.g. a free loop or a loop of dancer rollers

Definitions

  • the present invention relates to an arrangement for regulating the tension in an elongated element according to the preamble of independent claim 1.
  • a so-called dancer roller or dancer roller which is under a force, is often arranged between two fixed rollers or rollers. With constant force on this dancer roller, the material has a practically constant tension. With the very thin foils common today, such as aluminum foils with a thickness of around 10 / um, this tension must be observed very precisely.
  • a simple but inefficient control device is set out in DE-A 24 13 807.
  • a brake shoe is attached to a swivel lever to brake the supply roll directly.
  • the braking force is initially set using springs. Therefore, the web or belt only has the required tension initially.
  • DE-A 29 48 662 proposes to drive the supply roll by means of a motor and to regulate the speed of the motor by means of a tension regulator actuated by a tension roller.
  • the material web M for example a packaging film, is drawn off from a rotatably mounted supply roll 1.
  • the supply roll 1 is both with a mandrel 2 supported on one side so that the mandrel 2 rotates with the supply roll 1.
  • the mandrel 2 carries a brake drum 3 or a brake disc.
  • a brake shoe 5 acting on the brake drum 3 is fastened to a two-armed brake lever 4 mounted on the frame.
  • the free lever end 4a of the brake lever 4 is articulated to the piston rod 11 of a pneumatic cylinder 10.
  • two guide rollers 20, 21 which are fixed to the frame are arranged with a dancer roller 23, which is located in between and is rotatably mounted on a single-arm tensioning roller lever 22.
  • the material web M wraps around all three rollers 20, 21, 23.
  • a piston rod 31 of a tensioning cylinder 30 and a connecting rod 32 act on the tensioning roller lever 22.
  • a pressure fluid from a pressure adjustment valve 35 is fed to the tensioning cylinder 30 via a parallel connection of a throttle 33 for setting the damping and a check valve 34. With the pressure adjustment valve 35, the clamping force with which the dancer roller 23 is pressed against the material web M can be adjusted.
  • the piston rod 31 with the tensioning cylinder 30, the throttle 33, the check valve 34 and the pressure adjustment valve 35 together form the pressure adjustment device 38. This is framed in FIG. 1 by a line drawn in broken lines.
  • tensioning cylinder 30 is double-acting, pressure fluid can be supplied to the second cylinder cavity 36 with a first switching valve 37, in order to relieve the dancer roller 23 when the material web is inserted.
  • the adjustment part of a control valve 40 is connected to the connecting rod 32. Every movement of the dancer roller 23 thus causes an adjustment of the control valve 40.
  • the fluid flow caused is fed to the brake cylinder 10, as a result of which the piston 12 presses the brake shoes 4 more or less strongly against the brake drum 3 via the piston rod 11 in order to reduce the braking torque and thus the speed to regulate the supply roll 1.
  • a changeover valve 41 can be provided in the feed line 44 to the brake cylinder 10 and is fed separately via a second pressure adjustment valve 42. By actuating this pressure adjustment valve 42 can suddenly Lich machine stop a full braking of the supply roll 1 can be effected.
  • the brake shoes 5 can be raised by means of a second switching valve 43 so that the supply roll 1 can be replaced.
  • FIG. 2 shows another embodiment for a pressure adjusting device 38.
  • the tensioning roller lever 22, which is mounted fixed to the frame, is again shown here.
  • the damping device 33, 34 in the pneumatic feed line instead of the damping device 33, 34 in the pneumatic feed line, however, there is a hydraulic damper 50.
  • FIG. 3 Another variant for the damping device is shown in FIG. 3.
  • a hydraulic damping device is arranged in the feed line.
  • a pneumatic pressure adjustment valve 60 is followed by a vessel 61 for pneumatic pressure conversion.
  • a parallel connection of a check valve 62 and a throttle 63 connects to the hydraulic output before the hydraulic fluid is fed therefrom to the tensioning cylinder 64.
  • All throttles and valves can be connected by fluid lines to a control unit, not shown, as shown by the lines shown.
  • the control could just as well be electrical or electromagnetic.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP84810163A 1983-04-07 1984-04-03 Dispositif pour régler la tension dans un élement allongé Withdrawn EP0122230A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1878/83 1983-04-07
CH187883 1983-04-07

Publications (1)

Publication Number Publication Date
EP0122230A1 true EP0122230A1 (fr) 1984-10-17

Family

ID=4220698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810163A Withdrawn EP0122230A1 (fr) 1983-04-07 1984-04-03 Dispositif pour régler la tension dans un élement allongé

Country Status (1)

Country Link
EP (1) EP0122230A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146805A (en) * 1983-09-15 1985-04-24 Montalvo Edwin J Automatic control in a web system
FR2562867A1 (fr) * 1984-04-16 1985-10-18 Fuji Machinery Co Procede pour maintenir la tension d'une feuille de materiau d'emballage dans une emballeuse
WO2012041508A1 (fr) * 2010-09-30 2012-04-05 Honigmann Industrielle Elektronik Gmbh Dispositif compensateur
EP2514697B1 (fr) 2011-04-18 2016-08-31 Alkar-RapidPak, Inc. Systèmes et procédés pour alimenter une bande de matériau d'emballage dans une machine de conditionnement par indexation de mouvement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961436A (en) * 1960-06-25 1964-06-24 Rose Brothers Ltd Improvements in web-feeding apparatus
DE2617878A1 (de) * 1976-04-23 1977-11-03 Edelmann Maschf Sichtumroller
DE3019001A1 (de) * 1979-06-08 1980-12-18 Astin France Assistance Tech Vorrichtung zur regulierung der spannung eines sich bewegenden bandes
CH623281A5 (fr) * 1977-10-27 1981-05-29 Sig Schweiz Industrieges
DE2948662A1 (de) * 1979-12-04 1981-06-11 C. Keller GmbH u. Co KG, 4530 Ibbenbüren Vorrichtung zum vergleichsmaessigen der auf eine kunstoff-folie einwirkenden zugkraft beim abziehen der folie von einer folienrolle
DE2413807B2 (de) * 1973-04-04 1981-06-19 Lantech, Inc., Louisville, Ky. Verfahren und Maschine zum Herstellen einer Palettenpackung durch Umwickeln des auf eine Palette gestapelten Packgutes mit einer Folienbahn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961436A (en) * 1960-06-25 1964-06-24 Rose Brothers Ltd Improvements in web-feeding apparatus
DE2413807B2 (de) * 1973-04-04 1981-06-19 Lantech, Inc., Louisville, Ky. Verfahren und Maschine zum Herstellen einer Palettenpackung durch Umwickeln des auf eine Palette gestapelten Packgutes mit einer Folienbahn
DE2617878A1 (de) * 1976-04-23 1977-11-03 Edelmann Maschf Sichtumroller
CH623281A5 (fr) * 1977-10-27 1981-05-29 Sig Schweiz Industrieges
DE3019001A1 (de) * 1979-06-08 1980-12-18 Astin France Assistance Tech Vorrichtung zur regulierung der spannung eines sich bewegenden bandes
DE2948662A1 (de) * 1979-12-04 1981-06-11 C. Keller GmbH u. Co KG, 4530 Ibbenbüren Vorrichtung zum vergleichsmaessigen der auf eine kunstoff-folie einwirkenden zugkraft beim abziehen der folie von einer folienrolle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146805A (en) * 1983-09-15 1985-04-24 Montalvo Edwin J Automatic control in a web system
FR2562867A1 (fr) * 1984-04-16 1985-10-18 Fuji Machinery Co Procede pour maintenir la tension d'une feuille de materiau d'emballage dans une emballeuse
WO2012041508A1 (fr) * 2010-09-30 2012-04-05 Honigmann Industrielle Elektronik Gmbh Dispositif compensateur
EP2514697B1 (fr) 2011-04-18 2016-08-31 Alkar-RapidPak, Inc. Systèmes et procédés pour alimenter une bande de matériau d'emballage dans une machine de conditionnement par indexation de mouvement

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19850618

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZAUGG, EDUARD